They didn't 'rob them of their land.' The word "Palestinian" used to refer to jews.
Obviously it's all a bit complicated but a lot of people seem to have the idea that Israel was created out of whole cloth. They were pushed out of literally every other country in the region - https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2Fh... - so they're clearly hated for reasons other than what you stated.
You can't rob people from their land, force them to retreat into getthos, killing them, then expect that their descendants will be friends.
You also can't possibly have your ascendancy been victim of genocide and pretend this is the solution to your own problems.